class Restaurant:

    def __init__(self, restaurant_name, cuisine_type):
        self.restaurant_name = restaurant_name
        self.cuisine_type = cuisine_type
    
    def describe_restaurant(self):
        print(f"{self.restaurant_name} serves {self.cuisine_type} food.")
    
    def open_restaurant(self):
        print(f"{self.restaurant_name} is open.")

restaurant =  Restaurant("KFC", "fried chicken")
restaurant.describe_restaurant()
restaurant.open_restaurant()

restaurant2 =  Restaurant("MCD", "fried chicken")
restaurant2.describe_restaurant()
restaurant2.open_restaurant()

restaurant3 =  Restaurant("小菜园", "地锅鸡")
restaurant3.describe_restaurant()
restaurant3.open_restaurant()